Alarm device for ice-box drip-pans.



H. SILVER.

ALARM DEVICE FOR. ICE BOX DRIP PANS.

APPLIOATION FILED nuns, 191s.

1 Q9 1,593, Patented Mar. 31, 1914p Niinexa) .Izwenior! W Z9 julsA 1101714593 HERMAN SILVER, OF MINNEAPOLIS, MINNESOTA.

ALARM DEVICE FOR ICE-BOX DRIP-FANS.

To all whom it may concern.

Be it known that I, HERMAN SILVER, a citizen of the United States, residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and useful IIDPI'OVGHIBHtS in Alarm Devices for Ice-Box Drip-Pans; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to float actuated alarm devices for ice box drip pans and has for its especial object to provide means for detachably securing the alarm devices to the drip pans.

To the above ends, generally stated, the invent-ion consists of the novel devices and combinations of devices, hereinafter described and defined in the claim.

The invention is illustrated in the accompanying drawings, wherein like characters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a view in side elevation of the float actuated alarm device applied in working position to an ice box drip pan, shown in central vertical section, some parts of the alarm device being broken away, the exposed parts being shown in section, and still other parts shown in different positions by means of dotted lines; and Fig. 2 is a plan View of the float actuated alarm device removed from the ice box drip pan, some parts being shown by means of dotted lines.

The numeral 1 indicates an ice box drip pan, preferably made from galvanized iron, and terminating, at its upper edge, in a horizontal outwardly projecting flange 2, the free edge of which is rolled or bent upon itself at 3.

The numeral 4 indicates a horizontally extended supporting plate, adapted to rest, at its transverse intermediate portion, upon the flange 2 of the drip pan 1, and, its inner end is curved downward to afford a stop 5. Secured to the under side of the supporting plate 4, outward of the rolled edge 3 of the drip pan 1, is a depending bracket 6 having its intermediate portion bent laterally and folded upon itself to form an oflset pocket- 7 adapted to receive and hold, against rotation, a nut 8. A comparatively long vertically extended thumb screw 9 has Specification of Letters Patent.

Application filed March 3, 1913.

Patented Mar. 31, 1914.

Serial No. 751,948.

screw threaded engagement with the nut 8 and also works loosely through perforations 6 in the brackets 6 and are alined with the opening in the nut 8. The upper end of the thumb screw 9 impinges against the under surface of the flange 2 and draws the supporting plate 1 into frictional engagement with the upper surface of the said flange At its lower end, the thumb screw terminates in a knurled head 10. For holding the thumb screw 9 for straight line movement, the lower end of the bracket 6 is provided with a perforated lateral extension (3" through which said thumb screw loosely works. Solder-ed or otherwise secured to the bracket 6, just above its pocket 7, is a spring actuated bell 11 of the ordinary or any desired construction. This bell It has an upwardly projecting plunger 12, which works loosely through a perforation 13, formed in the supporting plate 4 and attached portion of the bracket 6.

An open top float 14, within the drip pan 1. is rigidly secured to an upwardly andv outwardly curved arm 15, provided with a pair of depending hinge lugs 16 that are embraced by a pair of upwardly projecting hinge lugs 1'7, integrally formed with the supporting plate a. The hinge lugs 16 and 17 are pivotally connected by hinge pins 18, located vertically above the thumb screw 9. Outward of its hinge lugs 16, the arm 15 is provided with a horizontally projecting finger 19 that overlies the upper end of the plunger 12, and is normally out of engagement therewith, as shown by means of dotted lines. When the water in the drip pan 1 has risen to a predetermined height, the finger 19 will force the plunger 12 downward, thereby sounding the alarm. By reference to Fig. 2, it will be noted that the supporting plate l is of a width sufiicient to completely cover the bell 11 to prevent water and dirt from getting on the same.

In addition to the frictional clamping of the supporting plate at onto the flange 2 by the thumb screw 9, the stop 5 and horizontal portion of the bracket 6 hold the supporting plate 1 against endwise movement with respect to the flange 2. The stop 5 also limits the downward swinging movement of the float 14:.

By making the improved alarm device entirely independent of the drip pan, said device may be purchased and applied to an ordinary ice pan. It also makes it possible to remove the alarm device from a worn out pan and apply the same to a new pan.

' The above described device, while extremely simple and of comparatively small cost of manufacture, is thought to be highly eflicient for the purpose had in View.

What I claim is The combination with a drip pan, of a horizontally extended supporting plate resting on the rim of said drip pan and having a depending bracket, a mechanically operated bell secured under said plate and having an upwardly projecting operating plunger working through said plate, said plate being of a width sufficient to com pletely cover said bell, a float hinged to said plate and having an operating finger for engagement with said plunger for actuating said bell when the water in the drip pan has reached a predetermined height, and a set screw having screw threaded engagement with said bracket and arranged to detachably clamp said supporting plate onto the rim of said pan.

In testimony whereof I affix my signature in presence of two witnesses.

HERMAN SILVER.

Vitnesses EDITH E. HANNA,

HARRY D. KILGoRE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

